Compact stretcher/compressor for high power ultrafast laser based on volume chirped Bragg grating in PTR glass

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$599,298.00
Award Year:
2009
Program:
SBIR
Phase:
Phase II
Contract:
N00024-09-C-4134
Agency Tracking Number:
N081-047-0519
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
OPTIGRATE CORP.
3267 Progress Drive, Orlando, FL, 32826
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
120669085
Principal Investigator:
Vadim Smirnov
V.P. Product Development
(407) 381-4115
vsmirnov@optigrate.com
Business Contact:
Igor Ciapurin
V.P. Product Development
(407) 381-4115
iciapurin@optigrate.com
Research Institution:
n/a
Abstract
The objective of this proposal is to develop the robust technology of a stretcher and a compressor for ultra short laser pulses. In Phase I OptiGrate demonstrated high quality stretching and compression by chirped Bragg gratings (CBG) fabricated in photo-thermo-refractive (PTR) glass. Significant improvement of a technology resulted in nearly diffraction limited quality of stretched and compressed pulses and diffraction efficiency up to 95%. For the first time 100 fs compressed pulses were achieved in CBG based CPA system. High average power (100 W) has been demonstrated as well. Phase II research and development will be directed towards enabling reliable manufacturing of CBGs designed for ultra short laser systems. The benefits of usage of such gratings are based on a compact geometry, unprecedented stability to optical radiation, high diffraction efficiency, absence of polarization dependence and durability to environmental conditions. However the most strategic importance of this technology is its scalability to large apertures and thickness which enable scaling to higher power and longer stretching. The specific target set for phase II of this project is demonstration of 1-ns stretching combined with large aperture 1x1 cm capable of compressing pulses with energies more than 20 mJ.

* information listed above is at the time of submission.

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